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From wind to whales: trophic links in a coastal upwelling system
Blue whales Balaenoptera musculus meet the highest prey demands of any predator that has ever existed by feeding exclusively upon dense but patchy schools of pelagic euphausiids. We examined the roleExpand
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Low worldwide genetic diversity in the killer whale (Orcinus orca): implications for demographic history
A low level of genetic variation in mammalian populations where the census population size is relatively large has been attributed to various factors, such as a naturally small effective populationExpand
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Evolution of population structure in a highly social top predator, the killer whale.
Intraspecific resource partitioning and social affiliations both have the potential to structure populations, though it is rarely possible to directly assess the impact of these mechanisms on geneticExpand
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Use of chemical tracers in assessing the diet and foraging regions of eastern North Pacific killer whales.
Top predators in the marine environment integrate chemical signals acquired from their prey that reflect both the species consumed and the regions from which the prey were taken. These chemicalExpand
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Eastern Temperate North Pacific Offshore Killer Whales ( Orcinus orca ): Occurrence, Movements, and Insights into Feeding Ecology
Beginning in the late 1980s, large groups of previously unidentified killer whales (Orcinus orca) were sighted off the west coast of Vancouver Island and in the Queen Charlotte Islands, BritishExpand
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Pacific White-sided Dolphin: Lagenorhynchus obliquidens
Publisher Summary The Pacific white-sided dolphin is a North Pacific endemic and one of six species of the genus Lagenorhynchus. It most closely resembles the dusky dolphin from the SouthernExpand
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Humpback whales interfering when mammal-eating killer whales attack other species: mobbing behavior and interspecific altruism?
Humpback whales (Megaptera novaeangliae) are known to interfere with attacking killer whales (Orcinus orca). To investigate why, we reviewed accounts of 115 interactions between them. HumpbacksExpand
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KILLER WHALES AND MARINE MAMMAL TRENDS IN THE NORTH PACIFIC—A RE-EXAMINATION OF EVIDENCE FOR SEQUENTIAL MEGAFAUNA COLLAPSE AND THE PREY-SWITCHING HYPOTHESIS
Springer et al. (2003) contend that sequential declines occurred in North Pacific populations of harbor and fur seals, Steller sea lions, and sea otters. They hypothesize that these were due toExpand
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Humpback whale song occurrence reflects ecosystem variability in feeding and migratory habitat of the northeast Pacific
This study examines the occurrence of humpback whale (Megaptera novaeangliae) song in the northeast Pacific from three years of continuous recordings off central California (36.713°N, 122.186°W).Expand
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